When you claim that something is banal, you do not like it because you think it is ordinary, dull, commonplace, and boring.

A chronic illness or pain is serious and lasts for a long time; a chronic problem is always happening or returning and is very difficult to solve.

Something that is diurnal happens on a daily basis.

Ennui is the feeling of being bored, tired, and dissatisfied with life.

If you describe something as ephemeral you mean that it lasts for only a short time or has a very short lifespan.

Something that is evanescent lasts for only a short time before disappearing from sight or memory.

Hackneyed words, images, ideas or sayings have been used so often that they no longer seem interesting or amusing.

Something that is immutable is always the same and cannot be changed.

Something that is interminable continues for a very long time in a boring or annoying way.

If you describe someone as inveterate, you mean that she is always doing a particular thing, especially something bad, and that she is not likely to stop doing it.

Something that is mediocre is just average or adequate in quality.

If you refer to an organization or system as a monolith, you mean it is very large and unwilling or very slow to change and adopt something new.

Something that is mundane is very ordinary and not interesting or exciting, especially because it happens very often.

If you describe something as pedestrian you think that it is ordinary and uninteresting.

Something that is perennial lasts a very long time and is enduring.

A platitude is an unoriginal statement that has been used so many times that it is considered almost meaningless and pointless although it is presented as important.

Something that is prosaic is dull, boring, and ordinary.

Something that has a singular nature is either exceptional and remarkable or unusual and odd, both cases of which point it to being unique in some way.

Stasis is a state of little change over a long period of time.

If you are steadfast you have a firm belief in your actions or opinions and refuse to give up or change them because you are certain that you are doing the right thing.

Something that is temporal deals with the present and somewhat brief time of this world.

If you say that something has the quality or state of transience, you mean that it lasts only for a short time or is constantly changing.

A trite remark or idea is so overused that it is no longer interesting or novel.

Something uncanny is either very strange, unnatural, or highly unusual.

An unparalleled accomplishment has not been equaled by anyone, or cannot be compared to anything that anyone else has ever done.

Something that is unprecedented has never occurred before, which makes it extraordinary, original, or new.

A thing or person that is unremitting is persistent and enduring in what is being done.

To vacillate is to go back and forth, unable to make a firm decision.

Something that is volatile can change easily and vary widely.

A watershed is a crucial event or turning point in either the history of a nation or the life of an individual that brings about a significant change.

If you waver you cannot decide between two things because you have serious doubts about which choice is better.

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Adj.

quotidian

kwoh-TID-ee-uhn

Context

My quotidian or daily purchase of ten cups of coffee has to stop. Not only am I running out of money from this quotidian or commonplace habit, but I’m getting a little too jumpy and nervous. If I do this I’ll have a quotidian, everyday headache and lack energy for a few weeks or months! Better let me think a bit more about it while I sip and spill my seventh coffee.

Memory Hook

Diary Quote Everyday I quote one of my friends in my diary; my quotidian diary quotes will be very interesting to read some day.

Examples

The poignant 'All Girl Band' stumps along cheerily, pretending it’s not about the quotidian struggle of being young, female and relentlessly hopeful.
—Rolling Stone

Coal, meanwhile, is believed responsible for a host of more quotidian problems, such as mining accidents, acid rain and greenhouse gas emissions.
—Newsvine

The news comes amid growing hype about going green, in an age when climate change has become as common a conversation topic as its quotidian counterpart, the weather.
—The Christian Science Monitor

The experience is fundamentally asocial, for it directs preoccupation away from the what and how of daily business toward the why, the mere asking of which marks separation from the quotidian, if not yet transcendence.
—The New York Times